It's not as snug as other frameless masks such as the Cressi F1 mask. We believe that Hollis have experimented with to boost rigidity of your mask for longevity and safety by strengthening the skirt content which means it could possibly pinch and dig if the mask is not a https://bookmarksbay.com/story17763682/helping-the-others-realize-the-advantages-of-why-are-silicone-masks-so-expensive